Review of last Thursday 61 ECS 175Chapter 3: Object Representation •Derivatives df(u)du=n°i=0n(bi−1,n−1(u)−bi,n−1(u))·pi(u)du=n−1°i=0bi,n−1(u)·n(pi+1−pi)Derivative is a Bézier curve of order (n-1) with “combined” control points

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